CVE-2018-6349

Name: CVE-2018-6349
Creator: NVD / NIST
Published: 2019-06-14T17:29:02.127+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.24%

Last modified Jun 17, 2026

CVE-2018-6349 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. When receiving calls using WhatsApp for Android, a missing size check when parsing a sender-provided packet allowed for a stack-based overflow. This issue affects WhatsApp for Android prior to 2.18.248 and WhatsApp Business for Android prior to 2.18.132.. EPSS estimates a 2.24% chance of exploitation in the next 30 days.

Description

When receiving calls using WhatsApp for Android, a missing size check when parsing a sender-provided packet allowed for a stack-based overflow. This issue affects WhatsApp for Android prior to 2.18.248 and WhatsApp Business for Android prior to 2.18.132.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.24%

80.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Whatsapp	Whatsapp	< 2.18.248
Whatsapp	Whatsapp Business	< 2.18.132

References

http://www.securityfocus.com/bid/108804Third Party Advisory, VDB Entry
https://www.facebook.com/security/advisories/cve-2018-6349/Third Party Advisory
http://www.securityfocus.com/bid/108804Third Party Advisory, VDB Entry
https://www.facebook.com/security/advisories/cve-2018-6349/Third Party Advisory

Timeline

Published: Jun 14, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-6349?

How severe is CVE-2018-6349?

CVE-2018-6349 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.24% probability of exploitation in the next 30 days.

How do I fix CVE-2018-6349?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-6349?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST